2003 MITSUBISHI LANCER OBD II SCAN CODE PO421

  • Tiny
  • Madhur4
  • 2003 MITSUBISHI LANCER

Engine Performance problem
2003 Mitsubishi Lancer 4 cyl Front Wheel Drive Automatic

I have Mitsubishi lancer 2.0 2003. I am gettting DTC code P0421. Warm Up Catalyst Below Threshold (Bank 1). Is there any harm to the car in driving with engine light on for a long drive (2,000km).

Do you
have the same problem?
Yes
No
Friday, April 3rd, 2009 AT 12:19 PM

1 Reply

  • Tiny
  • Bluelightnin6
  • EXPERT
  • 17,053 POSTS

The only issue this will cause to the performance of your vehicle is very poor fuel mileage. If you have to pass smog inspection tests then this will also cause you to fail the emissions test automatically.

Thanks for using 2CarPros. Com!

Was this
answer
helpful?
Yes
No
Friday, April 3rd, 2009 AT 1:45 PM

Please login or register to post a reply.

Other P0421 Questions